Finding the Fourth Proportional to 64,593.78, 89,139.32 and 35,912.52

Step by Step Solution

1. Step 1: Write the proportion equation
   64,593.78 : 89,139.32 = 35,912.52 : x
2. Step 2: Convert to fraction form
   64,593.78/89,139.32 = 35,912.52/x
3. Step 3: Cross multiply
   64,593.78x = 89,139.32 × 35,912.52
4. Step 4: Simplify right side
   64,593.78x = 3,201,217,432.72
5. Step 5: Solve for x
   x = 3,201,217,432.72/64,593.78
6. Step 6: Final answer
   x = 49,559.22